From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from wout3-smtp.messagingengine.com (wout3-smtp.messagingengine.com [64.147.123.19]) by sourceware.org (Postfix) with ESMTPS id DC20F3954C6A for ; Mon, 31 Oct 2022 15:49:12 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org DC20F3954C6A Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=danielengel.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=danielengel.com Received: from compute2.internal (compute2.nyi.internal [10.202.2.46]) by mailout.west.internal (Postfix) with ESMTP id CA1DA320093C; Mon, 31 Oct 2022 11:49:11 -0400 (EDT) Received: from mailfrontend1 ([10.202.2.162]) by compute2.internal (MEProxy); Mon, 31 Oct 2022 11:49:12 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=danielengel.com; h=cc:cc:content-transfer-encoding:date:date:from:from :in-reply-to:in-reply-to:message-id:mime-version:references :reply-to:sender:subject:subject:to:to; s=fm1; t=1667231351; x= 1667317751; bh=43IeROfjRFiJQAI0mAcOdx8b7SHFcZ3qBHyqcv5y8Qk=; b=g QPcd/FXQ1lgwZv72K8RP6phS+rLulN7yECRMFhZ7ZPzyX+SkN8mqMRgvw9p6Uql9 bj348h6NSGsqNChtmVCMb0EabTKFfiLXR1rq865PTU30yp4HIaW9MlGKtKYaKlEH gi2PXiSQfMzF3aMVOcLLEu76kMfzyVTSsZcKMxvXi24Z4p3c7ymaEentFxbppIA4 4XV40+8QAm1Ql7Erp4ROzvBHW+1EETi6sUBofKBrsKoPRGo19tX3pK0nrHjDTC3J Zsiwn4guzwkrEPnC0q6eL8ZDtr6esb7fRHiFuK6GX7sMBh7D3ym4nXIEmFO7395F 8ax62sIl/4bTUNgfm3F5w== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-transfer-encoding:date:date :feedback-id:feedback-id:from:from:in-reply-to:in-reply-to :message-id:mime-version:references:reply-to:sender:subject :subject:to:to:x-me-proxy:x-me-proxy:x-me-sender:x-me-sender :x-sasl-enc; s=fm3; t=1667231351; x=1667317751; bh=43IeROfjRFiJQ AI0mAcOdx8b7SHFcZ3qBHyqcv5y8Qk=; b=YWvkMc0iSJ6uT0Rfzr1EOnzVS1FKt vcOn9SdJmv7yHcgyn05FVxKf5MK7ZtL5zMIP3PUzrFxs+THABpOIigag+KpzHHmT yRxytJhIzOsJYdvOYqeGSl1ksU6UyhryXC6qMoshbxq8QQwxx54Sva9adkeAdD6v PZFHQrjPsdlKWRTNal6d+GX1V50YrCMdVAswZiZdupNdamvvubRnsWRmfpJoEol/ Kc5DQgFxLdJhVf/41aE8DZnZpRW3MCLieqMDdlP4BEU7jUVl+gVPCd5MYUgk4HoX +ZSL3MEm5JHYwruRl9eGC/QvCpfGSWcCb2uLzfl++YugO1Nm/fQUJinzg== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvgedrudefgdekudcutefuodetggdotefrodftvf curfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfghnecu uegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenuc fjughrpefhvfevufffkffojghfggfgsedtkeertdertddtnecuhfhrohhmpeffrghnihgv lhcugfhnghgvlhcuoehgnhhusegurghnihgvlhgvnhhgvghlrdgtohhmqeenucggtffrrg htthgvrhhnpeekkeeutddtheetfeehvdfhhfelheevgeekieegteduvedvueegveeiuefg hffgffenucffohhmrghinheptghliidvrdhssgdptghtiidvrdhssgdplhhisgdufhhunh gtshdrshgspdhpohhptghnthdrshgspdhgnhhurdhorhhgnecuvehluhhsthgvrhfuihii vgeptdenucfrrghrrghmpehmrghilhhfrhhomhepghhnuhesuggrnhhivghlvghnghgvlh drtghomh X-ME-Proxy: Feedback-ID: i791144d6:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Mon, 31 Oct 2022 11:49:10 -0400 (EDT) Received: from ubuntu.lorien.danielengel.com (ubuntu.lorien.danielengel.com [10.0.0.96]) by sendmail.lorien.danielengel.com (8.15.2/8.15.2) with ESMTP id 29VFn2Am087331; Mon, 31 Oct 2022 08:49:02 -0700 (PDT) (envelope-from gnu@danielengel.com) From: Daniel Engel To: Richard Earnshaw , gcc-patches@gcc.gnu.org Cc: Daniel Engel , Christophe Lyon Subject: [PATCH v7 34/34] Add -mpure-code support to the CM0 functions. Date: Mon, 31 Oct 2022 08:45:29 -0700 Message-Id: <20221031154529.3627576-35-gnu@danielengel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20221031154529.3627576-1-gnu@danielengel.com> References: <20221031154529.3627576-1-gnu@danielengel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-13.5 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,GIT_PATCH_0,JMQ_SPF_NEUTRAL,KAM_SHORT,RCVD_IN_DNSWL_LOW,SPF_HELO_PASS,SPF_PASS,TXREP autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: gcc/libgcc/ChangeLog: 2022-10-09 Daniel Engel Makefile.in (MPURE_CODE): New macro defines __PURE_CODE__. (gcc_compile): Appended MPURE_CODE. lib1funcs.S (FUNC_START_SECTION): Set flags for __PURE_CODE__. clz2.S (__clzsi2): Added -mpure-code compatible instructions. ctz2.S (__ctzsi2): Same. popcnt.S (__popcountsi2, __popcountdi2): Same. --- libgcc/Makefile.in | 5 ++++- libgcc/config/arm/clz2.S | 25 ++++++++++++++++++++++- libgcc/config/arm/ctz2.S | 38 +++++++++++++++++++++++++++++++++-- libgcc/config/arm/lib1funcs.S | 7 ++++++- libgcc/config/arm/popcnt.S | 33 +++++++++++++++++++++++++----- 5 files changed, 98 insertions(+), 10 deletions(-) diff --git a/libgcc/Makefile.in b/libgcc/Makefile.in index 1fe708a93f7..da2da7046cc 100644 --- a/libgcc/Makefile.in +++ b/libgcc/Makefile.in @@ -307,6 +307,9 @@ CRTSTUFF_CFLAGS = -O2 $(GCC_CFLAGS) $(INCLUDES) $(MULTILIB_CFLAGS) -g0 \ # Extra flags to use when compiling crt{begin,end}.o. CRTSTUFF_T_CFLAGS = +# Pass the -mpure-code flag into assembly for conditional compilation. +MPURE_CODE = $(if $(findstring -mpure-code,$(CFLAGS)), -D__PURE_CODE__) + MULTIDIR := $(shell $(CC) $(CFLAGS) -print-multi-directory) MULTIOSDIR := $(shell $(CC) $(CFLAGS) -print-multi-os-directory) @@ -316,7 +319,7 @@ inst_slibdir = $(slibdir)$(MULTIOSSUBDIR) gcc_compile_bare = $(CC) $(INTERNAL_CFLAGS) $(CFLAGS-$(. */ +#if defined(L_popcountdi2) || defined(L_popcountsi2) + +.macro ldmask reg, temp, value + #if defined(__PURE_CODE__) && (__PURE_CODE__) + #ifdef NOT_ISA_TARGET_32BIT + movs \reg, \value + lsls \temp, \reg, #8 + orrs \reg, \temp + lsls \temp, \reg, #16 + orrs \reg, \temp + #else + // Assumption: __PURE_CODE__ only support M-profile. + movw \reg ((\value) * 0x101) + movt \reg ((\value) * 0x101) + #endif + #else + ldr \reg, =((\value) * 0x1010101) + #endif +.endm + +#endif + + #ifdef L_popcountdi2 // int __popcountdi2(int) @@ -49,7 +72,7 @@ FUNC_START_SECTION popcountdi2 .text.sorted.libgcc.popcountdi2 #else /* !__OPTIMIZE_SIZE__ */ // Load the one-bit alternating mask. - ldr r3, =0x55555555 + ldmask r3, r2, 0x55 // Reduce the second word. lsrs r2, r1, #1 @@ -62,7 +85,7 @@ FUNC_START_SECTION popcountdi2 .text.sorted.libgcc.popcountdi2 subs r0, r2 // Load the two-bit alternating mask. - ldr r3, =0x33333333 + ldmask r3, r2, 0x33 // Reduce the second word. lsrs r2, r1, #2 @@ -140,7 +163,7 @@ FUNC_ENTRY popcountsi2 #else /* !__OPTIMIZE_SIZE__ */ // Load the one-bit alternating mask. - ldr r3, =0x55555555 + ldmask r3, r2, 0x55 // Reduce the word. lsrs r1, r0, #1 @@ -148,7 +171,7 @@ FUNC_ENTRY popcountsi2 subs r0, r1 // Load the two-bit alternating mask. - ldr r3, =0x33333333 + ldmask r3, r2, 0x33 // Reduce the word. lsrs r1, r0, #2 @@ -158,7 +181,7 @@ FUNC_ENTRY popcountsi2 adds r0, r1 // Load the four-bit alternating mask. - ldr r3, =0x0F0F0F0F + ldmask r3, r2, 0x0F // Reduce the word. lsrs r1, r0, #4 -- 2.34.1